@tomcalwriter Personally, I mostly use Google but I regularly see such kind of requests regarding setting selected engines as default.
It looked quite funny that when I mentioned about this in the blog post which describes some complaints regarding predefined browser in Windows there was some unclear (maybe can be also called incompetent) comment and the thread was quickly closed for comments.
https://blogs.opera.com/news/2024/07/opera-dma-request/
https://forums.opera.com/post/355401
